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| author | Dan Gohman <gohman@apple.com> | 2009-05-09 00:14:52 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-05-09 00:14:52 +0000 |
| commit | d586a4fef1bca15f3c4324d0238c417664111a88 (patch) | |
| tree | 9bb2b31871a4af99ec61e7199467411aff806297 | |
| parent | 5cae0f2f762a1d620879f332a79803cc2fc8f0e7 (diff) | |
| download | external_llvm-d586a4fef1bca15f3c4324d0238c417664111a88.tar.gz external_llvm-d586a4fef1bca15f3c4324d0238c417664111a88.tar.bz2 external_llvm-d586a4fef1bca15f3c4324d0238c417664111a88.zip | |
Don't attempt to handle unsized types in ScalarEvolution's GEP analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71302 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index c53d1f5aae..3f2656240e 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -1935,6 +1935,9 @@ SCEVHandle ScalarEvolution::createNodeForGEP(User *GEP) { const Type *IntPtrTy = TD->getIntPtrType(); Value *Base = GEP->getOperand(0); + // Don't attempt to analyze GEPs over unsized objects. + if (!cast<PointerType>(Base->getType())->getElementType()->isSized()) + return getUnknown(GEP); SCEVHandle TotalOffset = getIntegerSCEV(0, IntPtrTy); gep_type_iterator GTI = gep_type_begin(GEP); for (GetElementPtrInst::op_iterator I = next(GEP->op_begin()), |